Add 9/70 and 50/9, Solve 9/70 + 5 5/9 as a fraction

Add 9/70 and 50/9

1^st number: 9/70, 2^nd number: 5 5/9

9/70 + 50/9 is 3581/630.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 9 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 70 × 9 = 630,
9/70 = 9 × 9/70 × 9 = 81/630
Likewise, for the 2nd fraction, since 9 × 70 = 630,
50/9 = 50 × 70/9 × 70 = 3500/630
Add the two like fractions:
81/630 + 3500/630 = 81 + 3500/630 = 3581/630
So, 9/70 + 50/9 = 3581/630
In mixed form: 5431/630

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad